Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e92d77f2b256196…

MALICIOUS

PDF

39.0 KB Created: 2020-08-20 02:31:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 910664aa5ec556d1bcacdf0006acd607 SHA-1: db90100d2bb22b826dcf4cd7a8a4d7248cc44f76 SHA-256: 2e92d77f2b2561962aaa1021d415226a9e31cb9ef1b9ede2f8b80ed731ab8f0e
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, many of which point to a redirector service (ttraff.cc) that is known to host malicious content. The document body itself is largely unreadable, but the presence of the redirector URL and the heuristic firings strongly suggest a phishing or malware delivery attempt. The file also contains a link farm of SEO-optimized PDFs, likely intended to obscure the malicious intent.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.cc/pify?keyword=change+data+capture+in+informatica+powercenter
    • http://files.wacoceg.org/uploads/1/3/1/3/131378993/zasezapekaluvexim.pdf
    • https://cdn.shopify.com/s/files/1/0433/5891/2662/files/37033819100.pdf
    • https://cdn.shopify.com/s/files/1/0435/3720/3364/files/vixupal.pdf
    • https://cdn.shopify.com/s/files/1/0434/3041/2450/files/bafg_antrag_hamburg.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/65545430121.pdf
    • https://cdn.shopify.com/s/files/1/0428/7932/0223/files/qed_beauty_in_mathematical_proof.pdf
    • https://cdn.shopify.com/s/files/1/0440/7692/5078/files/chicago_manual_of_style_citation_primary_source.pdf
    • https://cdn.shopify.com/s/files/1/0433/9249/9877/files/capitation_rate_calculation_sheet.pdf
    • https://cdn.shopify.com/s/files/1/0430/2392/5402/files/pirepixawo.pdf
    • https://cdn.shopify.com/s/files/1/0427/5847/1846/files/27558210052.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005976.bin
7a111c63f54c3029214e4ad28878239ca38aeb243be14aae43f8b2a31131ba78		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5976 5356 bytes
font_01_sfnt_off00006b96.bin
56ffa0b233d170a5c4470d2266d63bafb04b66026cfe5cbc59035a1da5595259		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B96 10540 bytes

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